Transcription of 'Selecting High-Speed Operational Amplifiers Made Easy'
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'Selecting High-Speed Operational Amplifiers Made Easy'
Application ReportSLOA051A November 20001 selecting High-Speed Operational Amplifiers made EasyBruce CarterAdvanced Analog ProductsABSTRACTHigh- speed op amps come in current- and voltage-feedback versions. Voltage-feedbackamplifiers are sometimes de-compensated to allow greater speed , but this technique hasbeen superceded by current-feedback Amplifiers . Differential-output op amps are gainingpopularity for transformerless A/D Feedback and Current Op Op Current-Feedback Op vs Uncompensated Op vs Single-Ended Op It All Together: selecting the Right High-Speed Op Differential Voltage-Feedback Op Current-Feedback Op Stage Topology for Voltage and Current-Feedback Op of a Current-Feedback op amp as a Unity Gain Pass Filter With a Current Feedback Op Low Pass Filter With Current Feedback Op of Capacitance at the Inverting Capacitance Causes Capacitance Can Be Isolated With a Compensation for Load Compensation for Inverting-Input Method of Interfacing to Differ
SLOA051A Selecting High-Speed Operational Amplifiers Made Easy 5 • Do not connect a capacitor from the output of a current-feedback op amp to the noninverting input. Designers will often do this when trying to implement a low-pass filter.
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